title: Enhanced quantum dot optical down-conversion using asymmetric 2D photonic crystals.
abstract: Asymmetric 2D photonic crystals were fabricated using polymer embedded PbS quantum dots on plastic substrates for enhancing optical down conversion efficiency from blue to near infrared wavelengths through enhanced extraction and excitation effects. We demonstrate 8x improvement of QD emission at normal incidence extraction from enhanced extraction and 2.5x improvement in power conversion efficiency from enhanced excitation.
authors.affiliation: Nano Sensors Group, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Micro and Nanotechnology Laboratory, Urbana, IL 61801, USA. fyang5@illinois.edu
authors.forename: Fuchyi
authors.initials: F
authors.lastname: Yang
authors.forename: Brian T
authors.initials: BT
authors.lastname: Cunningham
mesh_terms: D003460:Crystallization / Q000379:methods; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D017785:Photons; D045663:Quantum Dots